Question
6. What are the three main categories of elements on the periodic table? a. Pure substances , compounds, and mixtures b. Alloys, nonmetals and metalloids c. Solutions, alloys, and compounds d. Metals, nonmetals , and metalloids
Answer
4.7
(333 Votes)
Nolwenn
Professional · Tutor for 6 years
Answer
'D' Metals, nonmetals, and metalloids.
Explanation
## Step1: The question asks for the three main categories of elements on the periodic table. Elements are the fundamental substances of matter and are classified based on their physical and chemical properties.## Step2: The three main categories of elements are metals, nonmetals, and metalloids. ### **Metals**: Metals are known for their shiny appearance, known as metallic luster. They are malleable and ductile, meaning they can be hammered into thin sheets and drawn into wires. Furthermore, metals are good conductors of heat and electricity.### **Non-metals**: Non-metals have a wide range of properties. They generally have high ionization energies and electronegativities. They are not malleable or ductile, and they are poor conductors of heat and electricity.### **Metalloids**: Metalloids, also known as semi-metals, have properties that fall between those of metals and non-metals. They are often semiconductors, which means they conduct electricity under certain conditions.## Step3: Pure substances, compounds, mixtures, alloys, and solutions are not categories of elements. They are different ways in which elements can combine or exist.